256488400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1949}}^1$

素因数の和:2021

約数の個数: 120

約数和(自身を含む): 719596800

約数和(自身を除く): 463108400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 47, 50, 56, 70, 80, 94, 100, 112, 140, 175, 188, 200, 235, 280, 329, 350, 376, 400, 470, 560, 658, 700, 752, 940, 1175, 1316, 1400, 1645, 1880, 1949, 2350, 2632, 2800, 3290, 3760, 3898, 4700, 5264, 6580, 7796, 8225, 9400, 9745, 13160, 13643, 15592, 16450, 18800, 19490, 26320, 27286, 31184, 32900, 38980, 48725, 54572, 65800, 68215, 77960, 91603, 97450, 109144, 131600, 136430, 155920, 183206, 194900, 218288, 272860, 341075, 366412, 389800, 458015, 545720, 641221, 682150, 732824, 779600, 916030, 1091440, 1282442, 1364300, 1465648, 1832060, 2290075, 2564884, 2728600, 3206105, 3664120, 4580150, 5129768, 5457200, 6412210, 7328240, 9160300, 10259536, 12824420, 16030525, 18320600, 25648840, 32061050, 36641200, 51297680, 64122100, 128244200, 256488400]

約数ペア:

[(1, 256488400), (2, 128244200), (4, 64122100), (5, 51297680), (7, 36641200), (8, 32061050), (10, 25648840), (14, 18320600), (16, 16030525), (20, 12824420), (25, 10259536), (28, 9160300), (35, 7328240), (40, 6412210), (47, 5457200), (50, 5129768), (56, 4580150), (70, 3664120), (80, 3206105), (94, 2728600), (100, 2564884), (112, 2290075), (140, 1832060), (175, 1465648), (188, 1364300), (200, 1282442), (235, 1091440), (280, 916030), (329, 779600), (350, 732824), (376, 682150), (400, 641221), (470, 545720), (560, 458015), (658, 389800), (700, 366412), (752, 341075), (940, 272860), (1175, 218288), (1316, 194900), (1400, 183206), (1645, 155920), (1880, 136430), (1949, 131600), (2350, 109144), (2632, 97450), (2800, 91603), (3290, 77960), (3760, 68215), (3898, 65800), (4700, 54572), (5264, 48725), (6580, 38980), (7796, 32900), (8225, 31184), (9400, 27286), (9745, 26320), (13160, 19490), (13643, 18800), (15592, 16450)]